Controlling mechanism.



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' KfW/L@ PATENTED JULY 11, 1905.

No. 794,2o3.

(1.15:.11111111311.v GONTROLLING MBGHANISM.

.APPLICATION FLED NOV. 21,1904.

Hic/manu UNIT-n STaTns patented .any i1, 1905.

GEORGE E. TURNER, OF BELLEFONTAINE, OHIO.

coNTRoLLnNe 'MECHANISNL SPECIFICATION forming part of Letters Patent No.. 794,203, dated July 11, 1905. Appleman nea November 21,1904. serai No'. 283,555.

Be it known that I, GEORGE E. TURNER, a citizen ofthe United States, residing at Bellefontainein the-count of Logan and State of Ohio, have inventedr certain new and useful Improvements in Controlling Mechanism,

' chines, whereby they are not only chea cned,

but are rendered more-'efficient by p acing the controlllng means ofv several operations under the constant control of the operator inl a central position, enabling him to-control the movements by various movements of a single lever which may be continuously retained in the grasp of the operator instead of shifting from one set of levers'to another, thus adding to the safety of the device as Well as the speed with which the various operations may be performed, and at the same time leave the other hand of the operator free to control various other movements by a corresponding lever. Y

With the above primary and other incidental objects in viewvrn'y invention consists of the devices and parts or their equivalents hereinafter described, and set forth in the claims. t

In the drawings,Figure 1 is a vplan view of a portion of a dredge-boat, showing such parts of the apparatus as are necessary to exemplify my invention. Fig. 2 is a side ele- Avation of a rtion of the dredging apparatus, and Fig. 3 1s a detail of the controllinglever and connections.

Like parts are indicated by similar characters of reference throughout the several views.

The deck of the dredge-boat is'indicated by the letter a.

e is the boom, located upon a turn-table c2 and adapted to be swung from side to side by the o eration of a cable a3, the opposite ends of w 'ch are secured upon the revoluble drums b b. These drums' are loose upon their driving-shaft, but adapted to be engaged therewith by suitable clutches.

c is the dip er, and c the dipper-handle providedwith t e usual racks c2, meshing with pinions c3 on the shipper-shaft e.

It is desirable to control the descent of the dipper when dropped to its working position by suitable brake mechanism on the shipper? shaft and by the same means to o pose t ward thrust u on the dipper-han le as the dipper is hoiste In the present device this is preferably done by one or more brake-wheels e on the shipper-shaft e, each of which wheels is equipped with a friction-band e2, adapted to be tlghtened by the oscillation of a rockshaft e3, located on the boom a and adjacent to said brake-wheels; To provide means for either separately or simultaneously operating said rock-shaft and one or other of the drum-engaging clutches of the drums b b, there is provided a transverse. shaft j; having suitable bearings and provided with both an upwardly-extending arm f and a downwardly extending arm f 2, which areresped tively connected by links f 3 f 4 with the en-' gaging clutches of the swinging drums b t. Thus when the shaft f is oscillated in vone di rection one of said drum-clutches will be set and the other released. Upon the opposite oscillation of the shaft fthe operation of the clutch mechanism will be reversed.

T'o oscillate the shaft f, a lever g is pivoted to the extremity of the shaft f, the axis of its pivotal connection being at right angles to the axis of the shaft. An arm g extends laterally from the lever g, the lon itudinal axis of which arm is normally coinci ent with that of the shaft f. Thearrn g terminates in a trunnion g2, on which is mounted a swivel -block g3, having pivotally secured thereto the end of a valve-stem 7L of av ram k.

The rock-shaft e3 is provided 'with a rock-arme'4 and counterbalance e5. A cable is secured at one end to the rock-arm c4 and at its oppoN einsite end to a piston-rod h2 of the ram It. In

the drawings the cable 'i is' 'shown passin over a sheave h3,fthence through a centra roo the left.

opening .in the turn-table c2, over sheaves L and h to the piston-rod It. lt is to be understood that this arrangement might be varied and the cable 'i conducted by suitably-ar-u ranged sheaves over the turntable and to the piston-rod.

Referring to the drawings, the movement ofthe lever g forward from the perpendicular will cause tire clutch mechanism o the drum b to be en aged, and the boom will swing to hel movement of the lever-rearward from t e per endicular willl set the clittch mech, nisrn o' the drum 2) and move the boom t/o/ the right. The return of the le- Y "ver g to the perpendicular will release either clutch which has been set, so that both drums are free, and the movement of the boom will stop. The lateral movement of the lever g,

whatever the position 'it may occupy in relation to the vertical, will operate the valvesof Vthe ram h to admitisteam or water, as the 4case/may be,vand cause the piston to move ugigwardly, which movement transmitted t ough the cable t' will oscillate the rock- .shaft e3 to set the friction-bands e2 upon the brake-'wheels e.

It will be seen that the operator by the use A'ss rection and arrest themovement at the proper time and simultaneously hold or release the shipper-shaft mechanism, as desired, and that, further, any one of these operations performed singly and independently 'eroperationsl Having thus described my invention, I

1. In a machine as described, brake devices therefor, boom-swinging devices, a singie lever for controlling the swinging movement of said boom devices and said brake devices, and connections between said lever and said brake devices for applying and releasing said brake during the swinging movement of said. boom.

2. In a machine as described, boom-swinging devices, a brake device on said boom, a single controllin -lever for said boom-swingin and brake evicc, means for operatin said brake by said lever simiiltaneousl wit the operation of the boom-swinging evices through -thc instrumentality oi said lever, substan tially as specified.

3. In a machine as described, a shippershaft, brake devices therefor, boom-Swingin devices, a single coiitiolling-lever for sai boom-swinging and shipper-shaft brake devices, and connections between said controlling-'lever and said devices, substantially as specified.

4. In a machine as described, a brake device, a ram for operating said brake device, means for Swingin transversely said brake device, and a sing e controlling hand-lever, and connections between said hand-lever and said brake device whereby in moving the lever in one direction said brake will be moved transversely and moving the lever in a trans-V verse direction will control said ram vand thereby operate the brake device.

5. In a machine as described, shipper-shaft brake devices, boom-swinging devices, a single controlling-lever capable of movement in two directions, connections between said lever and boom-swinging devicesfadaptedto operate said devices when the lever is moved in one direction, connections between said lever and shipper-shaft brake devices ada ted to control said brake devices when said ever is moved at right angles to the boom-controlling movement, substantiaily as specified.

6. In a machine as described, boom-swingingdevices, cable-operated brake devices for the shipper-shaft, a ram to operate saidcable, a rock-shaft, o positely-extending lateral arms on said roc shaft, connections between 'said lateral arms and the boom-swirl ing devices, a hand-lever pivotally secure to the rock-shaft, its pivotal connection bein at right angles to the axis' of the rock-sha t, a iaterai'arm on saidv lever, a connection between said lever-arm and the controllingvalve of the ram, substantiall as specified.

- 7. In a device as describe boom-swinging devices, brake devices for the shippershait, a ram for operating said brake devices,

a rock-shaft, a controlling-lever secured to" said'rock-shaft ada ted to oscillatesame but capable of a latera movement lindependent of said rock-shaft, a connection between said rock-shaft and boom-swinging devices, a con- IDO nection between said lever and said ram, substantially as specified.

8. In a machine as described, boom-controllin devices, dip er-controlling devices, a rock-s aft, a controlling-lever secured thereto and capable of movement in two directions, connections between said rock-shaft and boom-controlling devices, 'and connections between said controlling-lever and diper-controlling devices, substantially as speci- In testimony whereof Il have hereunto set 'y hand this '15th day of November, A. D.

GEORGE E. TURNER. i Witnesses:

JOHN E. WEST, R. F. TREMAIN. 

